2N Lift emergency phone 2N LiftNet - Manual, 1446 v1.8.3 - Manual (Page 47)

Audio Unit
– Machine Room
2.4
47
2.4 Audio Unit
– Machine Room
Description
This audio unit is designed for machine room installation. Compared with the other
types, it has some unique features:
 The audio unit contains a telephone set with the HandsFree/receiver modes
for good function in a noisy environment.
 The attached telephone is equipped with a keypad for function selection and
system programming.
 The attached telephone does not ring. The audio unit is equipped with a
siren that is loud enough for a noisy environment.
o The machine room audio unit can be shared by multiple lifts.
 The audio unit is equipped with a lift blocking contact in case LN fails to call
for help.
siren – beeps to alert incoming call or triphony beginning
LED indicator (red)
shining – initialisation (10s)
constantly shining – initialisation error
brightly shining – light bell (together with the siren beep)
Door locking screw
Address adjustment doors
Lift number (1–8) adjustment
Audio unit position adjustment
“Call in progress” indicator – yellow
“Call established” indicator – green
“Fireman connection” – green flashing
ALARM button – white-backlit at relax
TRIPHONY button – yellow-backlit when the triphony mode is
active
Figure 2.19 Audio Unit
– Machine Room
Description